What is the primary goal of fire lapping?

The primary goal of fire lapping is to smooth the interior surface of the bore. This process involves using specially designed bullets coated with abrasive material that, when fired, help to polish the bore as they travel through it. The smoothing effect can enhance accuracy by reducing friction between the bullet and the bore, leading to better bullet performance and consistency in trajectory.

Improving the internal surface can also aid in easier cleaning of the barrel and potentially extends the lifespan of the firearm by minimizing wear from lead or copper fouling. While improving the external appearance or removing copper residue may have their own benefits, they are not the main purposes of fire lapping. Additionally, increasing chamber capacity is unrelated to the effects of fire lapping, which specifically targets the bore of the barrel, not the chamber area.